Street lamp cable securing device



Aug. 9, 1932. o. ANKLAM STREET. LAMP CABLE SECURING DEVAICE Filed Feb.l, 1932 I9, such cables.

Patented Aug. 9, 1932 UNITED sra-res GTTO ANKLAlVL F MINNEAPOLIS,MINNESOTA STREET LAMP` CABLE "snotrnnve nnvronv Appliauoamea February1,l 1932. Serin No. 590,148.

Y ,This invention relates to devices for securing the `cables from whichstreet lamps are hung to such supports as posts, to prevent unauthorizedpersons from meddling with It is now the common practice to supportstreet lamps from posts and similar supports by means; of cables whichrun over sheaves f carriedv by the supports,` A street lamp is Qattached to one endV of such a cable to'beV raised or loweredtherebyandthe other enduof the cable is attached to the post or othersup- Y port. To lower the lamp, it is necessary to release the lastmentioned or operating.A end i w of the cable `from 'its support.Mischievous boysV and other unauthorized persons have causedconsiderable annoyance and eXp/ense to power companies and other ownersof such Y street lamps by releasingthe operating ends of such cablesfrom their supports and allow- 'ing the lamps to drop toloweredposition. It is the purpose of this invention to pro.-

vide novel and Aimproved means for attaching the operating end of such acable as above Y described to a support, such as a post,l to Ypreventunauthorized persons from releasing the said end of the cable yfromsuchVa support butpermitting authorized persons to, at times, release thesaid end of thercable from the .3G support. i

ing an embodiment of the invention in use for Al securing the operatingend of astreet lamp cable to a post; Y Y g Y Fig. 2 is a view in frontelevation of the r Y securing device shown in Fig. 1;

Fig. 3 isa horizontal section taken on the Y. line 3 8 of 2,'asindicatedby the arrows;

,Fig i is a vertical section taken onthe line- 4-4 of Fig.` 2, asindicated bv the arrows, and p showing the device applied to apost,certain of the parts being shown in oneposition in `full lines andinanother-'position liny dotted lines ;k and Fig. 5 is aview illustratinga key that may be used in connection with the device.

lReferring to the drawing, there is illustrated aV lamp post 6 havingsecured iadjacent its upper end thereto an outwardly pro-ll jectlngjarm7v supported by a cable 8. A ,sheave v9 is mounted on post6 adjacent arm7, while another sheave 10 is mountedat the outer endof the arm. A-cable11 runs over v the two sheaves 9 and 10 and the upper endof this cableis connected to aA street lamp '12.

LThe lower end of the cable 11 is adapted to .a

be releasably attached as to the postl 6 and by releasing this lower endvof the cable from the post, it will be seen that thelamp 12 may beloweredfor inspectionor repair, whereupon the 4lamp can be againraisedtoits op-` erative position.

f `To releasably secure the lower end of a cable, such 1as the cable 11,to a support such as the post 6, I provide'in accordance with theinvention, a block 13 of greater lengthv than width. This block 13 has arectangular boss 13a which projects outwardlyjbeyond the main portionofthe outer surface of the block and a tapped opening 13?) is formed inA "therblock .and this tapped opening extends centrally'throughv theboss 13a. Block 13 is securelyvfixed in place on post 6 usually .fiveorfjsiX feet from the' ground, as by means 0f spikes 14 which runthrough upper and lower openings in the block18, and have heads, theouter surfaces of which are disposed inwardly from the outer surface ofboss 13a. A plate 15 of a width approximating the` greatestfwidth ofblock 131 and of considerably greater length than the block 13 overliesthis block13 and has an elongated aperture latherein within which `boss13a-and the heads of spikes 14.12115.- When the plate 15 overlies theblock 13,'the sidesof the boss 13a strike the plate-to preventturningmovement 'of the plate relative to theblock. Plate 15 has inwardlyextending flanges yat its sides and upperendaboveblock 13 toformahousing 15?) having an open inner side; A cable opent ing is cutthrough the end flange of housing 15]) to permit insertion ofthe lowel1'ld" boss, bears against the :cutersurtace.osthe 7:

stud 16`carrying a washer 17 and screwthreaded within the housing b. Anopening 15d is provided in the lower end of plate 15 to receivea.hookfnot .illustnated,) .Abar

18 of a length .corresponding to V"the jlengthfof the aperturela and,having a central outwardly projecting apertured and recessed boss 13aand normally projects transversely 'across plate 15. This bar l158 'hasinturnedlugs 18a atts twoends between whichV the lplate 15l will bereceived when the `bar`i`s extended `transversely of the plate andisdisposed flush against the outer surface of theV bioss 13a. A

. .stud ..19 projects .through :the aperture .ot the bar 18,V1 .and isscrewfthreaded within ,the .tapped opening .13b of block 13 .and`thisfstud v has `an enlarged lcylindrical head 'which .nor-

.to Athree, parts 13,515 and T18. YAs the heads fof Ainallyfits withinthe .recess .of .'the .boss :of -bar 18. A .polygonal-shaped socket .19a,is proyvided in zthe outer surface Aofthe stud .1Q-to Vreceive-one.endota key20 also=of polygonal- Y ...shape in cross section.

-Under normal rcumstances-.to holdthe i loweriendof.thecable11securelyfattachedto ,the .post 6 and to .prevent.,detachmentfof the saine from fthe post ,by .unauthorized `persons,

.the variouspartswilhbe positionedas shown in Figs. .-1,23andfin (fulllines Fig. 1l. When thepartsareginthi-s position, the post closes ,therear side of the .housing 15b rand no Yacv cess may behad to thelowerend-of thecable 11. The lugs 18a-'of the-bar 18;,togetherwvith itheboss 13a prevent .removalof the ,plate 15. from its position overlyingthe block`13 and A.also [prevent relative rotation-.between thethe-spikes vll -are disposed within the aperture :15a of the plate 15;,access .to the spikes Vfor removalof the same cannotfbe .As thecylindricalhead of -the stud 19 tits tightly within fthe recessottheJboss-ofbar 18,.it.w1ll

"be impossible to loosen this ,stud uinless. the

peculiar shaped-key 21 is employed. It v:is :thus practically impossiblefor unauthorized persons @to release the tlower end of the cable -1`1trom the post 6. j .l

When authorized per-sonsdesire -to .lower .thelamp 12 `for repair, a keysuch as the key '20, -will .be -rst inserted within the-socket 19a i ofVstud 19 whereupon 'the 4stud will beun- -screwed A'for a short'distance-,or :until .the `inner ends of the lugs d8a .may -beswung overtheouter faceof platel. The bar 187.1nay

` thenfbeswung-through 'QOOfrom its position shownuin full lines4 Fig. 4to -itsjpositio'n shown in dotted lines Figfli.. Plate 15 may *then `lbeswung outwardlyto the dotted line :position shown ".inFi'gffl :and asthis -occurs, ibar`18 will be .carri ed through lthe, aperture Y15aofffthe plate. A .hook to'w'hichk arope is l attached may now be'connected lwi-th the plate disposed against said :boss lto projectvacross 15 through the hook opening 15d, whereupon the lamp 12 may belowered `for adjustment,

inspection or repair. It will be seen that the lower, end of the cablemay be readily reattached in position on the post 6 after the. lamp -12has been again elevated to its original position,V Y

The Apresent fdevice vsimple )in lconstruction and in operation. It hasbeensuccessfully demonstrated in actual practice. :It `|will, iof-,oourse, .be understood that various changes may be made in the form,de- `tails,"arrangement'- and proportions of the Various `-parts withoutdeparting from the scope ofthe present invention. I

Whatis claimed V.is,:-r .Y j 1. .A device for s ecuringa cable to fasupport, comprising a blockinoimted Lon :said support, said blockhaving, a bossfformed thereon projecting outwardly ffro'mfits cuterface, a plate-overlying said block and'ha-vin'gv ,an aperture thereinwithin which said boss is received, a` ybar bearing against said boss land normally-.straddllng Y said plate, means at one-end'of said plateforsecuring'a'cable thereinsecuring said Ibarjto said 'lolo .Y A

Adevice orsecuring a cable oit a street Vlamjg') .to a' support,comprising a.;bloek. at-

tached `to' the support'and having an o u't- 95 ad i thereto, and astudfhav-inga 'key o, ening" ing at one end 'thereofwithinwhich'the'end100 'of the cable is secured, al bar 'havingintu'rnedl i lugsat theyends .thereof spaced `rornea'ch VAother a distance corresponding tothewidth of said'Y plate, said bar beinga'dapted to be saidmember withsaid lugs one at `each side of said member and .a stud :having awvrenhreceiving opening at. its vouter .end Vpassing through saidbar. andscrew threaded within rthe boss ofsaid plate.` Y Y 1 j y .3. A deviceforsecuring a cable oi'astieet lamp to a support,jcomprising af'blocksecured to said support, said lblock having an outwardly proj ecting,boss thereon, a plate. fitting against saidlolock land, having an 'aper-`ture Itherein within'swhichsaid Aboss. yis received, .said plateVform'inga housing acent one end which-housing is openv at its innerside, sa'id lhousing having an aperture thereture within lsaid block. Y

4. The structure delined .inY claim .3, .said

in through .which a cable may extend, `means 1 20 Y. :har beingrecessedto snugly rreceiue .the :head @o of said stud and said studhaving a key re-v ceiving socket in its head.

5. A device for securing a cable of a street lamp to a supportcomprising a block, said block having an outwardly projecting boss ithereon, spikes securing said block to said support, a plate overlyingsaid block and having an aperture therein within which said boss and theheads of said spikes are received, means at one end of said plate forOTTO ANKLAM.

